* {
    margin: 0;
    padding: 0;
    list-style: none;
}
body{
    background-color: #ccc;
}
.container {

    header {
        width: 100%;
        height: 50px;
        background-color: #333;

        .headBox {
            width: 600px;
            height: 100%;
            margin: 0 auto;
            display: flex;
            justify-content: space-between;
            align-items: center;

            p {
                color: white;
                font-size: 24px;
            }

            input {
                width: 70%;
                height: 60%;
                border: none;
                outline: none;
                border-radius: 5px;
                padding: 0 10px;
                box-sizing: border-box;
            }
        }
    }

    main {
        width: 600px;
        margin: 0 auto;

        .titleBox {
            width: 100%;
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin: 15px 0;

            h3 {
                font-size: 22px;
            }

            span {
                display: block;
                padding: 0px 5px;
                border-radius: 50%;
                background-color: aliceblue;
            }
        }

        .uContent,.fContent,
        .uContent>ul.fContent>ul {
            width: 100%;

            li {
                width: 100%;
                height: 30px;
                margin: 10px 0;
                background-color: rgb(255, 255, 255);
                display: flex;
                align-items: center;
                position: relative;
                border-left: 5px solid #333;

                input{
                    width: 20px;
                    height: 20px;
                    margin: 0 10px;
                }      

                button{
                    padding: 2px 6px;
                    border: 2px solid #ccc;
                    color: #888;
                    position: absolute;
                    right: 5px;
                    border-radius: 50%;
                    cursor: pointer;
                }
            }
        }
        .fContent>ul {
            opacity: 0.5;
        }
    }
}